MOHAMMAD MAHBUB HAIDAR SARKER

[email protected] +88-01833-183526 ; +88-01552-437458 Mirpur-12, Pallabi, Dhaka, Bangladesh
LinkedIn: @mahbubhaidar

PROFESSIONAL SUMMARY

As a dedicated and highly motivated Linux professional, I bring a robust background in RHCSA, RHCE, RHCS-V, and RHCS-HA, underscored by a proven track record of success. I am eager to apply my expertise and hands-on experience in a dynamic team environment, where I can tackle challenging roles with enthusiasm. My objective is to thrive in the Linux domain while continually expanding my proficiency across the Cloud, Network, Cyber Security, Virtualization technology, Database, and DevOps realms. Committed to staying abreast of industry trends, I am poised to spearhead innovation and enhance efficiency in IT solutions. I am excited about the prospect of collaborating with fellow professionals who share my passion and contributing to the triumph of projects that demand technical prowess and strategic problem-solving.

WORK EXPERIENCE

Senior System Engineer | Operational Support Systems (OSS)
07/2023 - Present
Summit Communications Limited
Build, configure, and maintain Docker images for applications and services
Write and manage Dockerfiles for consistent and reproducible environments
Push/pull images to/from Docker Hub or private registry
Deploying multiple containers & diagnosing container issues, logs, and performance problems
Maintain, configure, and ensure reliable operation of computer systems, network servers, and virtualization environments
Perform server administration tasks such as user/group management, security permissions, group policies, and print services
Monitor system resources and performance to ensure the system's architecture components work together seamlessly
Research and resolve event log warnings and errors
Perform routine and scheduled audits of all systems, including backups
Install and upgrade computer components, operating systems, and software packages
Manage virtual servers and integrate automation processes to improve efficiency and reduce manual workload
Continuously monitor system performance to ensure smooth and secure operation
Troubleshoot hardware and software issues by running diagnostics, documenting problems and resolutions, and assessing impact
Prioritize and escalate issues as needed to ensure minimal downtime
Perform or delegate regular backup operations
Implement and maintain processes for data protection, disaster recovery, and failover procedures
Plan for capacity and storage needs to support business growth
Monitor and optimize database performance to ensure responsiveness and reliability
Document IT processes, procedures, and system configurations for internal use and employee onboarding
Provide technical support and assistance to internal teams as requested
Collaborate with other teams to identify root causes of issues and offer technical expertise
Operations Expert (ICMS) | Information Technology Platform (ITP)
04/2022 - 07/2022
RedDot Digital Limited
Get an idea of the ICMS service's infrastructure and different types of campaign management systems
Getting ideas, monitoring, notifying, and troubleshooting alerts received through an internal alert service & highly utilized server storage
Analyze logs to resolve customer and retailer complaints
Maintenance and support of day-to-day operations of ICMS (Integrated Campaign Management Systems) Application by understanding the system
Associate System Administrator | System Operations (SysOps)
09/2021 - 12/2021
Therap (BD) Ltd.
Taking ideas about the company's system, server, and network infrastructure
Contribute to the optimization of system stability, availability, and performance
Troubleshoot issues notified by alerting tools
Get an idea of the Linux OS tools that are used on the system server
Identify and troubleshoot system issues, taking corrective actions and escalating when necessary
System Engineer | Core Network Operation (VOICE & SMS)
02/2020 - 09/2021
NovoTel Limited
Active handling of internal voice and SMS system alerts, including alarms from monitoring
Carrier integration and provisioning in the internal SMS system
Create and update internal OBD and IVR campaigns, filters, list strategies, and reports
Monitoring SMS traffic and servers such as Elasticsearch, Kibana, and Grafana
Designs, implements, and configures Kibana visualizations in alignment with business requirements
Carrier integration and provisioning in Genband (NexTone) SBC-S3 & Q21
Conducting projects through R&D to explore new potential business areas
Developing and managing effective working relationships with other departments, groups, and teammates
Maintaining professional obligations through efficient work habits, such as maintaining integrity and respecting schedules
fulfilling responsibilities and holding effective and timely meetings
Technical Support Executive
01/2019 - 01/2020
Linux Pathshala Limited
Installing, configuring, diagnosing, and troubleshooting hardware operating systems, applications, and network faults
Providing IT support and solving technical problems in both a stand-alone and a network environment
Network troubleshooting, network maintenance, and network cabling
Understanding LAN equipment like routers, switches, and servers for proper installation, maintenance & troubleshooting

EDUCATION

Bachelor of Science (B.Sc.) in Computer Science Engineering (CSE)
01/2018
Southeast University, Dhaka
Higher Secondary Certificate (H.S.C) in Science
01/2012
Mirpur College, Dhaka
Secondary School Certificate (S.S.C) in Science
01/2010
Uttar Kalshi Adarsha Bidyapith, Dhaka

SKILLS

CERTIFICATIONS

Red Hat Certified System Administrator (RHCSA), RHEL 7
Red Hat Enterprise Linux (RHEL)
Red Hat Certified Engineer (RHCE), RHEL 7
Red Hat Enterprise Linux (RHEL)
Red Hat Certified Specialist in Virtualization (RHCS-V), Version 4.1
Red Hat Enterprise Linux (RHEL)
Red Hat Certified Specialist in Virtualization (RHCS-V), Version 4.3
Red Hat Enterprise Linux (RHEL)
Red Hat Certified Specialist in High Availability Clustering (RHCS-HA), RHEL 8
Red Hat Enterprise Linux (RHEL)
Red Hat Certified Specialist in Containers (RHCS-C), Podman Version 4
Red Hat Enterprise Linux (RHEL)